The density and relative compression of water in solutions of alkali metalchlorides

The density of water calculated by the Zdanovskii method (rho (H2O)), which , according to Zdanovskii, is the density of water in external hydration sh eaths of electrolyte ions, was found to be virtually the same for alkali me tal chlorides except LiCl at their equal concentrations (c(e)). The rho (H2 O) value increased as c, grew and decreased when the temperature of solutio ns rose. The results of calculations were at variance with hydration laws. The observed dependences were explained on the assumption that the calculat ed P-H2O values characterized the mean density of water in solution rather than in external hydration sheaths of ions.